ChemInform Abstract: C60O3, A Fullerene Ozonide: Synthesis and Dissociation to C60O and O2.

Heymann, D.; Bachilo, Sergei M.; Weisman, R. Bruce; Cataldo, Franco; Fokkens, R.H.; Nibbering, Nico M. M.; Vis, R.D.; Chibante, L. P. F.

doi:10.1002/chin.200111096

Cited by 8 publications

(16 citation statements)

References 1 publication

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“…The obtained reduction rate of the band gap for the ether-a-O structure that can be one of the final products is 2–3% for all the SWCNTs. Experimental studies of C 60 and C 70 fullerenes treated with ozone have demonstrated similar results. , The electronic absorption spectra for the ether structure after losing O 2 resemble those of the pristine fullerenes.…”

Section: Resultsmentioning

confidence: 57%

Ab Initio Study on Oxygen Doping of (5,4), (6,4), (6,5), and (8,6) Carbon Nanotubes

Ohfuchi

2015

J. Phys. Chem. C

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Oxygen doping of single-wall carbon nanotubes (SWCNTs) exposed to ozone and light has attracted attention because of their greater luminescence quantum yield than that of pristine CNTs. The luminescence at E 11 *, which is red-shifted from E 11 for pristine CNTs, originating from the oxidation appears to be also observed for small-diameter CNTs in chirality separation experiments without a particular oxidation treatment. To understand this phenomenon, we performed ab initio calculations for the adsorption of oxygen molecules (O 2 ) onto realistic models of chiral CNTs. We found that the energy barrier from the physisorption of O 2 to the chemisorption is lower than that of the reverse reaction for (6,4) nanotubes, whereas the relation is opposite for (8,6) nanotubes, consistent with the distinct luminescence peak at E 11 * observed for (6,4) nanotubes and with the lack of a pronounced luminescence peak for larger-diameter (8,6) nanotubes in the chirality separation experiments. As also proposed for ozone oxidation, one of the final products was found to be the isolated ether structure, whose ground state band gap is slightly narrower than that of pristine CNTs.

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Section: Resultsmentioning

confidence: 57%

Ab Initio Study on Oxygen Doping of (5,4), (6,4), (6,5), and (8,6) Carbon Nanotubes

Ohfuchi

2015

J. Phys. Chem. C

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“…The absorption spectrum (Figure 4) showed a sharp absorption peak at 408 nm, which is characteristic of C 60 . 50,[52][53][54] Furthermore, there was no evidence of the existence of C 60 oxide, whose characteristic peak is at 424 nm. 50,52,53,55 Therefore, it is concluded that these "C 60 small aggregates" are unaltered C 60 fullerene.…”

Section: Adsorption Of Naphthalene From Aqueous Solution To Activated...mentioning

confidence: 98%

Naphthalene Adsorption and Desorption from Aqueous C₆₀ Fullerene

2004

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The main purpose of this study was to characterize the adsorption and desorption interactions of naphthalene, a model environmental organic pollutant, with C60 fullerene. C60 fullerene was used as a model adsorbent for carbonaceous nanoparticles. Typical batch reactors were used to perform adsorption and desorption experiments. Adsorption and desorption of naphthalene to and from C60 fullerene solids in different aggregation forms was studied, where C60 was used as purchased, deposited as a thin film, or dispersed in water by magnetic mixing. Adsorption and desorption of naphthalene to activated carbon, a common sorbent, was also studied and compared with that of C60. It was found in this study that the enhanced dispersal of C60 could affect the adsorption of naphthalene by several orders of magnitude. A solid-water distribution coefficient of 102.4 mL·g-1 was obtained for adsorption of naphthalene to poorly dispersed C60, whereas (104.2 to 104.3) ml·g-1 coefficients were obtained for well-dispersed C60 samples. In addition, desorption of naphthalene from dispersed C60 samples into aqueous solutions was found to exhibit strong hysteresis. For the desorption over a period of 60 days, only about 11% of total naphthalene was desorbed from C60. Possible mechanisms for these observations are discussed.

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“…the oxidation reaction of C 60 with m-chloroperoxybenzoic acid (m-CPBA) afforded C 60 O in 30% yield and C 60 O 2 as the cis-1 isomer in 8% yield [14]. In addition, the formation of C 60 O and C 60 O n (n ≥ 2) was identified by mass spectroscopy or high-performance liquid chromatography (HPLC), yet no isolated yields were reported in the oxidation of electrochemically generated anionic C 60 [15] and ozonolysis of C 60 [16][17][18]. Interestingly, C 60 O has been employed as the precursor for further functionalizations, leading to the formation of C 120 O [19], 1,3-dioxolane derivatives of C 60 [20], indoline derivatives of C 60 [21], and 1,2-perfluorophenylfullerenol [22].…”

Section: Introductionmentioning

confidence: 99%

Highly efficient synthesis of [60]fullerene oxides by plasma jet

et al. 2017

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Atmospheric pressure nonequilibrium plasma jet has been applied to the synthesis of [60]fullerene oxides (C60On) for the first time. C60O and C60O2 were produced and isolated in high yields up to 44% and 21%, respectively. The structural assignment of C60O was confirmed by comparison with the reported spectroscopic data. Theoretical calculations of 13C NMR chemical shifts for eight isomers of C60O2 were performed and compared with the experimental data to assign the most possible structure for the obtained C60O2 dominantly as an e isomer.

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ChemInform Abstract: C₆₀O₃, A Fullerene Ozonide: Synthesis and Dissociation to C₆₀O and O₂.

Abstract: C 60 O 3 , A Fullerene Ozonide: Synthesis and Dissociation to C 60 O and O 2 . --(HEYMANN, DIETER; BACHILO, SERGEI M.; WEISMAN, R. BRUCE; CATALDO, FRANCO; FOKKENS, ROELOF H.; NIBBERING, NICO M. M.; VIS, RONALD D.; CHIBANTE, L. P. FELIPE; J. Am. Chem.

Cited by 8 publications

References 1 publication

Ab Initio Study on Oxygen Doping of (5,4), (6,4), (6,5), and (8,6) Carbon Nanotubes

Ab Initio Study on Oxygen Doping of (5,4), (6,4), (6,5), and (8,6) Carbon Nanotubes

Naphthalene Adsorption and Desorption from Aqueous C₆₀ Fullerene

Highly efficient synthesis of [60]fullerene oxides by plasma jet

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ChemInform Abstract: C60O3, A Fullerene Ozonide: Synthesis and Dissociation to C60O and O2.

Abstract: C 60 O 3 , A Fullerene Ozonide: Synthesis and Dissociation to C 60 O and O 2 . --(HEYMANN, DIETER; BACHILO, SERGEI M.; WEISMAN, R. BRUCE; CATALDO, FRANCO; FOKKENS, ROELOF H.; NIBBERING, NICO M. M.; VIS, RONALD D.; CHIBANTE, L. P. FELIPE; J. Am. Chem.

Cited by 8 publications

References 1 publication

Ab Initio Study on Oxygen Doping of (5,4), (6,4), (6,5), and (8,6) Carbon Nanotubes

Ab Initio Study on Oxygen Doping of (5,4), (6,4), (6,5), and (8,6) Carbon Nanotubes

Naphthalene Adsorption and Desorption from Aqueous C60 Fullerene

Highly efficient synthesis of [60]fullerene oxides by plasma jet

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ChemInform Abstract: C₆₀O₃, A Fullerene Ozonide: Synthesis and Dissociation to C₆₀O and O₂.

Naphthalene Adsorption and Desorption from Aqueous C₆₀ Fullerene